Im having similar problem, shakes when i accelerate but feel like its the wheel, when i let off gas it stops cant pass 20mph, can it possibly be the axel

 

Yeah that's almost certainly a bad CV axle inner joint.

 

Did you pinch the axle nut after you torqued it down so it wouldn't come loose?

edit: 7 years ago :facepalm:

 

Facepalm again cuz its been revived and the posts are not all 7 years old.

 

Since I have no idea what kind of car this is, I'm going to take a wild guess.

Either clogged catalytic converter or bad torque converter (assuming your car is automatic)

 

Personally, I've had bad luck with "economy" drive shafts. I'd use the forum market place to order your axles. Also, the intermediate shaft bearing could be going bad. While your at it make sure your torque mounts (rod from LCA to front frame) are tight. Easy access to the bolts just under the front bumper.